压力容器2017，Vol.34Issue(3)：1-9,9.DOI:10.3969/j.issn.1001-4837.2017.03.001
含初始几何缺陷薄壁圆柱壳屈曲载荷的数值模拟方法研究
Research on Buckling Load Numerical Method of Cylindrical Shells with Initial Imperfection
万福腾 1陈志平 1焦鹏 1徐烽 1唐小雨 1苏文强1
作者信息
- 1. 浙江大学 化工机械研究所,浙江 杭州 310027
- 折叠
摘要
Abstract
A buckling experimental investigation on the behavior of 3 cylindrical shells subjected to axial pressure was carried out.Through experimental investigation,the buckling critical loads and deformation were obtained.Based on the experimental results,three different nonlinear numerical calculation methods,including Riks method,nonlinear static method and explicit dynamic method,were compared.The numerical calculation results show that the nonlinear static method and experimental results are in good agreement when taking the initial imperfection into account.This method can relatively accurately calculate the axial buckling critical load with lower than 6.0％ error and shows consistent deformation with experimental results.Experimental results indicate that due to the initial imperfection the axial critical buckling load was reduced largely and the experimental value of buckling loads is only about 42％ of the theoretical value.关键词
薄壁圆柱壳/初始几何缺陷/轴压屈曲/试验研究/数值模拟Key words
thin-wall cylindrical shell/initial imperfection/axial buckling/experimental study/numerical calculation分类
机械制造引用本文复制引用
万福腾,陈志平,焦鹏,徐烽,唐小雨,苏文强..含初始几何缺陷薄壁圆柱壳屈曲载荷的数值模拟方法研究[J].压力容器,2017,34(3):1-9,9.
